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BOSTON MARATHON 2025

Kara Bassett

Bib: 26924•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:07/mi
28:19
↑ 97↓ 3451.5%
10K· 6.21 mi
8:51/mi
55:48
↑ 79↓ 1380.4%
15K· 9.32 mi
8:49/mi
1:23:12
↑ 67↓ 78
20K· 12.43 mi
8:51/mi
1:50:41
↑ 106↓ 860.1%
Half· 13.11 mi
8:46/mi
1:56:40
↑ 19↓ 370.5%
25K· 15.53 mi
8:59/mi
2:18:26
↑ 66↓ 880.2%
30K· 18.64 mi
9:18/mi
2:47:21
↑ 181↓ 1480.2%
20M
9:49/mi
3:00:42
↑ 64↓ 500.2%
21M
10:12/mi
3:10:54
↑ 106↓ 241.6%
35K· 21.75 mi
9:16/mi
3:17:50
↑ 17↓ 861.7%
23M
9:49/mi
3:30:08
↑ 23↓ 630.6%
24M
9:54/mi
3:40:02
↓ 821.3%
40K· 24.85 mi
10:15/mi
3:48:48
↓ 200.3%
25.2M
10:21/mi
3:52:22
↑ 13↓ 160.2%
Finish· 26.22 mi
8:44/mi
4:01:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:40
Pace8:54 /mi
2nd Half
Distance13.11 mi
Time2:04:36
Pace9:30 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:3228:199:0728:19
9:07
-
10K
6.21 mi12:21:0155:488:5927:29
8:51
-0:16
15K
9.32 mi12:48:251:23:128:5627:24
8:49
-0:02
20K
12.43 mi13:15:541:50:418:5427:29
8:51
+0:02
Half
13.11 mi13:21:531:56:408:545:59
8:46
-0:05
25K
15.53 mi13:43:392:18:268:5521:46
8:59
+0:13
30K
18.64 mi14:12:342:47:218:5928:55
9:18
+0:19
20M
20.00 mi14:25:553:00:429:0213:21
9:49
+0:31
21M
21.00 mi14:36:073:10:549:0510:12
10:12
+0:23
35K
21.75 mi14:43:033:17:509:066:56
9:16
-0:56
23M
23.00 mi14:55:213:30:089:0812:18
9:49
+0:33
24M
24.00 mi15:05:153:40:029:109:54
9:54
+0:05
40K
24.85 mi15:14:013:48:489:128:46
10:15
+0:21
25.2M
25.20 mi15:17:353:52:229:133:34
10:21
+0:06
Finish
26.22 mi15:26:294:01:169:138:54
8:44
-1:37

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:44 /mi

Average Pace

9:13 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:03:11

76% of race

Time at Steady Pace

54:31

23% of race

Time at Slower Pace

3:34

1% of race

Average Pace: 9:12 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:53:3228:199:0728:19
9:07
#22898
10K
6.21 mi12:21:0155:488:5927:29
8:51
#22353
15K
9.32 mi12:48:251:23:128:5627:24
8:49
#21946
20K
12.43 mi13:15:541:50:418:5427:29
8:51
#21474
Half
13.11 mi13:21:531:56:408:545:59
8:46
#21435
25K
15.53 mi13:43:392:18:268:5521:46
8:59
#21163
30K
18.64 mi14:12:342:47:218:5928:55
9:18
#20760
20M
20.00 mi14:25:553:00:429:0213:21
9:49
#20728
21M
21.00 mi14:36:073:10:549:0510:12
10:12
#20603
35K
21.75 mi14:43:033:17:509:066:56
9:16
#20563
23M
23.00 mi14:55:213:30:089:0812:18
9:49
#20536
24M
24.00 mi15:05:153:40:029:109:54
9:54
#20585
40K
24.85 mi15:14:013:48:489:128:46
10:15
#20647
25.2M
25.20 mi15:17:353:52:229:133:34
10:21
#20622
Finish
26.22 mi15:26:294:01:169:138:54
8:44
#20541
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi228989118911821126(Top 74%)8071(Top 66%)8071(Top 148%)
10K6.21 mi3.10 mi22353+5458808+3108808+31021631(Top 76%)8385(Top 69%)8385(Top 153%)
15K9.32 mi3.11 mi21946+4078570+2388570+23821126(Top 74%)8071(Top 66%)8071(Top 148%)
20K12.43 mi3.11 mi21474+4728304+2668304+26620203(Top 71%)7594(Top 62%)7594(Top 139%)
Half13.11 mi0.68 mi21435+398277+278277+2720815(Top 73%)7941(Top 65%)7941(Top 145%)
25K15.53 mi2.42 mi21163+2728133+1448133+14419803(Top 70%)7422(Top 61%)7422(Top 136%)
30K18.64 mi3.11 mi20760+4037961+1727961+17219158(Top 67%)7207(Top 59%)7207(Top 132%)
20M20.00 mi1.36 mi20728+327959+27959+220380(Top 72%)8008(Top 65%)8008(Top 146%)
21M21.00 mi1.00 mi20603+1257907+527907+5219041(Top 67%)7353(Top 60%)7353(Top 134%)
35K21.75 mi0.75 mi20563+407899+87899+819478(Top 69%)7710(Top 63%)7710(Top 141%)
23M23.00 mi1.25 mi20536+277907-87907-819890(Top 70%)7994(Top 65%)7994(Top 146%)
24M24.00 mi1.00 mi20585-497955-487955-4821072(Top 74%)8637(Top 71%)8637(Top 158%)
40K24.85 mi0.85 mi20647-628003-488003-4821249(Top 75%)8789(Top 72%)8789(Top 161%)
25.2M25.20 mi0.35 mi20622+257997+67997+618502(Top 65%)7391(Top 60%)7391(Top 135%)
Finish26.22 mi1.02 mi20541+817963+347963+3417716(Top 62%)6941(Top 57%)6941(Top 127%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

21126

Females

8071

F18-39

8071

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

21631

Females

8385

F18-39

8385

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

21126

Females

8071

F18-39

8071

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

20203

Females

7594

F18-39

7594

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

20815

Females

7941

F18-39

7941

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

19803

Females

7422

F18-39

7422

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

19158

Females

7207

F18-39

7207

30K→20M

18.6 - 20.0 mi

Top 72%
×5story building
+64ft-50ft

Overall

20380

Females

8008

F18-39

8008

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

19041

Females

7353

F18-39

7353

21M→35K

21.0 - 21.8 mi

Top 69%
×7story building
+17ft-86ft

Overall

19478

Females

7710

F18-39

7710

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

19890

Females

7994

F18-39

7994

23M→24M

23.0 - 24.0 mi

Top 74%
×6story building
+12ft-82ft

Overall

21072

Females

8637

F18-39

8637

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

21249

Females

8789

F18-39

8789

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18502

Females

7391

F18-39

7391

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2story building
+22ft-21ft

Overall

17716

Females

6941

F18-39

6941

Passing Analysis

Category:
Athletes Passed
2990
Passed By
633
Net Change
+2357
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22898
5K → 10K61570+545#22898#22353
10K → 15K44942+407#22353#21946
15K → 20K48917+472#21946#21474
20K → Half5415+39#21474#21435
Half → 25K30230+272#21435#21163
25K → 30K43835+403#21163#20760
30K → 20M11583+32#20760#20728
20M → 21M16540+125#20728#20603
21M → 35K6424+40#20603#20563
35K → 23M9972+27#20563#20536
23M → 24M4291-49#20536#20585
24M → 40K3698-62#20585#20647
40K → 25.2M327+25#20647#20622
25.2M → Finish909+81#20622#20541
TOTALS2990633+2357
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing